import java.util.Arrays;
import java.util.function.IntToDoubleFunction;

public class Task {

    public static void main(String[] args) {
        double[] prices = {4.2, 1.3, 21.12, 5.3, 8.0, 2.2, 1.0, 0.5, 0.3, 12.2, 6.65};

        run(prices);
    }

    public static String run(double[] prices) {
        return null;
    }

}